Note: If you are a good poster and you are worried about limitation of newbie and signature campaign there is option for you;
Many of these limitations can be eliminated with a
copper membership. In particular, you can set a signature at Member level if you wear a copper membership.
I highly discourage suggesting Newbies to buy Copper Membership for the sake of wearing Member signatures and participate in Signature/Bounty Campaigns. The primary purpose of Copper Membership was to enable lower rank users to post images and reduce their PM or posting time intervals, but the recent changes have changed the usage of it, and people, who can afford to buy it, are using it to wear signatures of the ranks higher than them and post crap everywhere to earn a few bucks every week. If a user is a good poster, he should simply use that power and earn a few Merits to rank up manually and then do whatever they want. They should not need to buy Copper Membership for anything like that.
I agree with your thought. We should not spoil newbie to get Copper Membership for wearing bounty signature. Copper Membership is fit for company which register new account to run their ICO, post images and links on their announcement, bounty, service threads.
